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268857 — NUT,PLAIN,KNURLED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

268857: NUT,PLAIN,KNURLED.

The NUT,PLAIN,KNURLED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: KNURLED, knurl_width: 0.031 INCHES NOMINAL IN, nut_diameter: 1.750 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.109 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-208-7339, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
268857
NSN: 5310-00-208-7339
FSC: 5310 — Nuts and Washers
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleKNURLED
knurl_width0.031 INCHES NOMINAL IN
nut_diameter1.750 INCHES NOMINAL IN
thread_class3B
nut_thickness0.109 INCHES NOMINAL IN
thread_seriesUN
special_featuresTAPPED FOR SETSCREW; TWO /2/ 0.112 IN. W/-40 NC-3 HOLES LOCATED 180 DEG APART ON 1.312 DIA CIRCLE; TWO /2/ O.140 THRU HOLES IN
thread_directionRIGHT-HAND
small_end_diameter1.125 INCHES NOMINAL IN
nominal_thread_size1.000 INCHES IN
hole_type_and_quantity1 TAPPED
NSN5310-00-208-7339
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 268857 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HOLE THREAD QUANTITY PER INCH: 32
•
THREAD SERIES: UN
•
HOLE CONFIGURATION STYLE: CONFIGURATION J
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
NUT DIAMETER: 1.750 INCHES NOMINAL IN
•
NUT THICKNESS: 0.109 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOLE THREAD QUANTITY PER INCH32
THREAD SERIESUN
HOLE CONFIGURATION STYLECONFIGURATION J
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.000 INCHES IN
NUT DIAMETER1.750 INCHES NOMINAL IN
NUT THICKNESS0.109 INCHES NOMINAL IN
SMALL END DIAMETER1.125 INCHES NOMINAL IN
SPECIAL FEATURESTAPPED FOR SETSCREW; TWO /2/ 0.112 IN. W/-40 NC-3 HOLES LOCATED 180 DEG APART ON 1.312 DIA CIRCLE; TWO /2/ O.140 THRU HOLES IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 268857?
268857 is a NUT,PLAIN,KNURLED.
What is the NSN for 268857?
268857 is cataloged in the U.S. Government catalog under NSN 5310-00-208-7339. This indicates validated use in U.S. government and defense supply chains.
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